<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="./js/vue.js"></script>

    <style>
    [v-cloak]{
        display:none
    }
    </style>
</head>
<body>
    <div id='app'>
        ====== {{msg}} ===={{obj.aa}}===={{arr[1]}}=={{func()}}   
        <div v-cloak>  
            {{msg}}
        </div>
    </div>
    <script>
        var  vm=new  Vue({
            el:'#app',
            data:{
                msg:'123',
                obj:{
                    aa:1111
                },
                arr:[1,2,3],
                func:function(){
                    return 33333
                }
            }
        })
    </script>
    
</body>
</html>